networking

So I thought I'd post some networking labs I've been working on. Git Repository: https://github.com/ITBible/NetworkingLabs This post will contain that information once its available, and be modified as new information is added.

In this post I’m going to turn a normal Ubuntu server install into an OSPF router. In this example we’re going to be using a Ubuntu install with 2 ethernet interfaces, we’ve already setup pfSense on the uplink interface with Free Range Routing (FRR) and its areas and we are only going to focus...

I'm working on a work project and this is the start of my config for a router. I started with a fresh CentOS7 install. Here we are assuming eth0 is our “public” interface while eth1 is our “private” interface. 1) Install pre-reqs yum install epel-release yum install iptables-services yum...

Network Assumptions For this tutorial we are going to assume the following: Physical Layout We have 3 buildings Building 1 (1 switch) - building-1a ports 1-10 - staff access ports 11-15 - guest access ports 16-17 - wireless access points ports 18-19 - connect to building-2a ports 20-21 -...

I try to keep my posts / tutorials as concise as possible but in some cases I'm not able to do that, and this is one of those cases. This is a longer one but it will be at the core of something I want to do within my lab. Install OpenVPN and Download EasyRSA First run an update and install...

This is just a simple method for adding fail over IPs to your Linux server at OVH. This works for both Linux VPS's and dedicated servers. Disable Network Config This file won't be crated by default and we'll be creating it during the next step so lets open it in our editor (in my example I'll...

Just a simple little thing, I don't know why I always forget and need to look this up. nslookup myip.opendns.com resolver1.opendns.com